Adcraft &quot;Ford Day&quot; Event- It's Not Fair

As you may know, Adcraft is sponsering an event called Ford Day. The winner of American Idol, David Cook, and the runner up, David Archuleta, were set to be performing at this event.
Unexpectedly, the event suddenly changed to "members only" after being advertised that anyone was able to go. Those who have already purchased tickets to this event, and possibly hotel accomadations, plane tickets, or have made arrangements otherwise are eagerly encouraged to sign this petition.
If the tickets were high in demand, it would make more sense on the Adcraft Club's part to go ahead and let those who have purchased tickets attend, rather than change the advertisement on their website and only allow the show for Members Only.
What could it hurt If anything, allowing the non-members to view this event, could only help put money into their establishment.

Is there a cause you really care about? Start a free petition like this one and make a real difference.